NSA Astronomy torches - for any hobby or sport where not loosing your dark adapted night vision is required.
This torch is ideal for general use as well as close up work and map reading.
it is a superb low cost back up to your normal torch that can be kept with your other keys so it is always to hand even when your normal torch has decided to hide itself :)
To be fair the red beam is really good and just the right level of brightness for working round your mount etc
Please be aware LED are bright if shined directly into the eyes so always observe common sense and never shine directly at a fellow astronomer as it may have some effect on their dark adapted night vision as any light will!